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20/09/2020 7:12 pm
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The INCORRECT statement is :
(1) bronze is an alloy of copper and tin.
(2) brass is an alloy of copper and nickel.
(3) cast iron is used to manufacture wrought iron.
(4) german silver is an alloy of zinc, copper and nickel.
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20/09/2020 7:15 pm
(2) brass is an alloy of copper and nickel.
Explanation:
Alloy Composition
1. Bronze - Cu (75 – 90%) + Sn (10, 25%)
2. Brass - Cu (60 – 80%) + Zn (20 – 40%)
3. German Silver - Cu (50 – 62%) + Zn (17 – 19%) + Ni (21 – 30%)
Cast iron is used to manufacture wrought iron.